Answer:
Let the candy be x, the letter be y and the birds be z.
Given: x + x = 164
When finding x: 2x = 164
x = 164/2 = 82, Therefore the candy = 82 each.
Given: y + y + y + y = 88
When finding y: 4y = 88
y = 88/4 = 22, Therefore the letter ( postcards ) = 22 each.
Given: z - 13 = 127
When finding z: z = 127 + 13
z = 140, Therefore the birds = 140.
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